test: remove redundant fchmod test

PR-URL: #25282
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>

Author: ZYSzys

test/parallel/test-fs-chmod.js

@@ -147,17 +147,6 @@ if (fs.lchmod) {
   }));
 }
 
-['', false, null, undefined, {}, []].forEach((input) => {
-  const errObj = {
-    code: 'ERR_INVALID_ARG_TYPE',
-    name: 'TypeError [ERR_INVALID_ARG_TYPE]',
-    message: 'The "fd" argument must be of type number. ' +
-             `Received type ${typeof input}`
-  };
-  assert.throws(() => fs.fchmod(input, 0o000), errObj);
-  assert.throws(() => fs.fchmodSync(input, 0o000), errObj);
-});
-
 [false, 1, {}, [], null, undefined].forEach((input) => {
   const errObj = {
     code: 'ERR_INVALID_ARG_TYPE',